Gas exchange patterns in Platynus assimilis (Coleoptera: Carabidae): Respiratory failure induced by a pyrethroid
| Autor: | Irja KIVIMÄGI, Aare KUUSIK, Angela PLOOMI, Luule METSPALU, Katrin JÕGAR, Ingrid H. WILLIAMS, Ivar SIBUL, Külli HIIESAAR, Anne LUIK, Marika MÄND |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | European Journal of Entomology, Vol 110, Iss 1, Pp 47-54 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1210-5759 1802-8829 |
| DOI: | 10.14411/eje.2013.006 |
| Popis: | Discontinuous gas exchange (DGE) is the main (23 individuals) breathing mode in resting adult Platynus assimilis. Few of the beetles tested (13 individuals) displayed a pattern of cyclic gas exchange or CGE. The burst of CO2 release in DGE and CGE was always accompanied by abdominal pumping (active ventilation or V). Seven individuals displayed a pattern of continuous respiration, characterized by regular abdominal pumping. Resting metabolic rate (RMR) in continuously breathing beetles was higher than in those using DGE and CGE. After treatment with sub-lethal doses of alpha-cypermethrin DGE ceased. Treated beetles were characterized by continuous pumping and almost regular periods of activity. RMR increased significantly after treatment with a pyrethroid. |
| Databáze: | Directory of Open Access Journals |
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